%0 Journal Article
%T Perceptual Digest Function for Verifying Integrity in Audio Forensics
%A Diego Renza
%A Dora M. Ballesteros L.
%A H¨Śctor Duvan Ortiz
%J -
%D 2017
%R https://doi.org/10.17230/ingciencia.13.25.7
%X In this work we propose a function that allows to calculate a summary code from the parameters of a voice signal. This function is based on ordering of spectral coefficients obtained by means of the application of the Fast Fourier Transform (FFT), using a locally generated reference function (Gaussian random noise). The proposed method is oriented to the verification of integrity in forensic voice signals. The proposed methodology has a perceptual approach, which implies that the resulting code is maintained, even when modifications are made, particularly those that do not affect the sensitive content of the signal, such as re-quantization processes
%K Hash function
%K perceptual hash
%K integrity
%K audio forensics
%U http://publicaciones.eafit.edu.co/index.php/ingciencia/article/view/4624